A piece of metal of mass $5\ kg$ and temperature $-50\ ^oC$ is dropped in $20\ kg$ water at $52\ ^oC$ temperature. In thermal equilibrium temperature of water decreases by $2\ ^oC$, then specific heat of metal is ...... $ Cal/g\,^oC$
$0.02$
$0.04$
$0.08$
$0.10$
If $H_C, H_K$ and $H_F$ are heat required to raise the temperature of one gram of water by one degree celcius, kelvin and fahrenheit temperature scales respectively then
What is heat capacity of a substance ?
$0.93$ $watt-hour$ of energy is supplied to a block of ice weighing $10\,gm.$ It is found that
If temperature scale is changed from $°C$ to $°F$, the numerical value of specific heat will
Water falls from height $500\,m$. The rise in temperature of water at bottom if whole of energy remains in water, will be ........ $^oC$ [sp. heat of water $4.2\,KJ/kg$ ]