JAMB Physics · Energy, pressure and heat
Quantity of heat: JAMB Physics Past Questions and Answers
What the JAMB syllabus covers in Quantity of heat
Our summary: Heat as energy, heat capacity and specific heat capacity, and how to measure them.
- Heat as a form of energy
- Definition of heat capacity and specific heat capacity of solids and liquids
- Determination of heat capacity and specific heat capacity of substances by simple methods e.g. method of mixtures and electrical method and Newton's law of cooling
Objectives
- differentiate between heat capacity and specific heat capacity;
- determine heat capacity and specific heat capacity using simple methods;
- solve numerical problems.
Syllabus content © The Joint Admissions and Matriculation Board (UTME).
JAMB Physics questions on Quantity of heat
- JAMB 2025The thermal capacity of a body depends on one of the following
- JAMB 2025How long will it take to heat 4 kg of water from 30ºC to 65ºC using an electric kettle taking 5 A from a 240 V supply? (Specific heat capacity of water = 4200 J…
- JAMB 2025Calculate the heat capacity of a material that absorbs 48KJ of heat at a differential temperature of 53ºC
- JAMB 20255400kJ of heat energy was lost when some amount of steam condensed to water for drinking purposes at 15º C. What is the quantity of water collected? [L f = 2.26…
- JAMB 2025Calculate the specific heat capacity of a metal rod of mass 0.025kg whose temperature was raised by 15ºC when 1000J of heat energy was added to the rod(assuming…
- JAMB 2025Without considering the containing vessel, what mass of boiled water can raise the temperature of 8 kg of water from 25°C to 60°C when mixed in a heat-proof…
- JAMB 2024The quantity of heat required to melt ice of 0.2 kg whose specific latent heat is 3.4 x 10 ^5 J/Kg is
- JAMB 2024How much joules of heat are given out when a piece of iron, of mass 60g and specific heat capacity 460JKg ^ -1 K ^ -1 , cools from 75ºC to 35ºC
- JAMB 2024Newton's law of cooling is valid only for a
- JAMB 2024Calculate the quantity of heat for copper rod whose thermal capacity is 400Jk ^ -1 for a temperature change of 60ºC to 80ºC
- JAMB 2023Which of the following is/are not true about the heat capacity of a substance? (i) It is an intensive property (ii) Its S.I unit is jK-1 (iii) It is an…
- JAMB 20210.5kg of water at 10ºC is completely converted to ice at 0ºC by extracting (88000) of heat from it. If the specific heat capacity of water is 4200jkg ^ 1 Cº…
- JAMB 2021A piece of substance of specific heat capacity 450Jkg ^ -1 k ^ 1 falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the…
- JAMB 2020In the study of Physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two elements?
- JAMB 2020Heat is supplied uniformly at the rate of 100W to 1.0 x 10 ^ -2 kg of a liquid for 20 seconds. If the temperature of the liquid rises by 5 ^o C, then the…
- JAMB 2019The statement 'Heat lost by the hot body equals that gained by the cold one' is assumed when determining specific that heat capacity by the method of mixtures…
- JAMB 2018The amount of heat needed to raise the temperature of 10kg of Copper by 1K is its
- JAMB 2018The time rate of loss of heat by a body is proportional to the
- JAMB 2018Water of mass 150g at 60 ^o c is added to 300g of water at 20 ^o c and the mixture is well stirred. Calculate the temperature of the mixture.(neglect heat…
- JAMB 2018An electric heating coil rated at 1Kw is used to heat 2kg of water for 2 minutes. The initial water temperature is 30 ^o C. Taking the specific heat of the…
- JAMB 2017When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The mass of P is half that…
- JAMB 2016The heat required to raise a mass of a substance through 1K is known as
- JAMB 2015Quantities of heat Q can be measured using a container called
- JAMB 2015A zinc has a heat capacity of 40 J/K, what is the mass of the zinc, given that the specific heat of zinc is 380 J/kg k
- JAMB 2014The quantity of heat needed to raise the temperature of a body by 1K is the body's
- JAMB 2013Two liquids X and Y having the same mass are supplied with the same quantity of heat. If the temperature rise in X is twice that of Y, the ratio of specific…
- JAMB 2012Calculate the temperature change when 500J of heat is supplied to 100g of water [specific heat capacity of water = 4200JKg ^ -1 k ^ -1 ]
- JAMB 2012The quantity of heat energy required to melt completely 1 kg of ice at - 30oC is [latent heat of fusion = 3.5 x 10 5Jkg -1, specific heat capacity of ice =…
- JAMB 2011A block of aluminum is heated electrically by a 30 w heater if the temperature rises by 10°c in 5 minutes, the heat capacity of the aluminum is
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