Which of the following units is the S.I. unit of heat capacity?
Jkg-1
Jkg-1 K-1
JK-1
Jg-1K-1
Correct answer is C
Heat capacity = \(\frac{\text{Heat energy supplied}}{\text{Rise in temperature}}\)
= JK\(^{-1}\)
conduction
radiation
diffusion
convection
Correct answer is B
No explanation has been provided for this answer.
vaporization point
cooling temperature
boiling point
melting point
Correct answer is D
No explanation has been provided for this answer.
5v
10v
14v
24v
Correct answer is B
E - V1 + V2
24V = 14V + VQP
VQP = 4 + 14V
VQP =10V
200g
320g
400g
500g
Correct answer is D
Heat lost by hot water = Heat gained by cold water
M x 4200 x (100 - 60 = 0.4 x 4200 x (60 - 10)
4200m x 40 = 0.4 x 4200 x 50
40m = 0.4 x 50
m = \(\frac{0.4 \times 50}{40}\) = 0.5kg
= 500g
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