Question Text
Question 2 :
Use of thermometer is based on which law of thermodynamics ?
Question 5 :
The temperature at the bottom of a high water fall is higher than that at the top because
Question 7 :
$0.1 \,{m^3}$ of water at ${80^ \circ }$ is mixed with $0.3 {m^3}$ of water at ${60^ \circ }$. The final temperature of mixture is :
Question 8 :
A gas absorbs $400\ J$ of heat and expands by $2\times 10^{-3}m^{3}$ against a constant pressure of $1\times 10^{5}Nm^{-2}$. The change in internal energy is $(1\ L\ atm=100\ J$)
