객관식
Which of the following substances (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of heat?
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8. Thermochemistry
Heat Capacity
객관식
What is the amount of energy required to raise the temperature of one gram of water by 1°C?
A
0.5 joules
B
4 joules
C
1 calorie
D
10 calories
검증된 단계별 안내1
Understand the concept of specific heat capacity: The specific heat capacity of a substance is the amount of energy required to raise the temperature of one gram of the substance by 1°C. For water, this value is 1 calorie per gram per degree Celsius.
Identify the given values: In this problem, we are dealing with 1 gram of water and a temperature change of 1°C.
Apply the formula for heat energy: The formula to calculate the heat energy required is Q = m × c × ΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.
Substitute the known values into the formula: Here, m = 1 gram, c = 1 calorie/gram°C, and ΔT = 1°C.
Calculate the energy required: By substituting the values into the formula, you can determine the amount of energy needed to raise the temperature of 1 gram of water by 1°C.
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