Chhattisgarh Board Solutions for Chapter: Heat and Temperature, Exercise 2: Exercise

Convert the temperature $12 \mathrm{K}$ into Celsius.

Write three uses of specific heat of water in daily life.

Determine the final temperature if we mix $1 \mathrm{kg}$ of water which is at $40 °\mathrm{C}$ with $1 \mathrm{kg}$ of water which is at $60 °\mathrm{C}$.

Mass of an aluminium object is $500 \mathrm{g}$, how much amount of heat (in joules) needs to be supplied in order to increase its temperature by $40 °\mathrm{C}$? Specific heat of aluminium is $0.09 \mathrm{J} {\mathrm{kg}}^{-1} °{\mathrm{C}}^{-1}$.

Length of an aluminium wire is $100 \mathrm{cm}$. What will be the increase in its length when its temperature is raised to $50 °\mathrm{C}$ from $30 °\mathrm{C}$? Coefficient of linear expansion for aluminium is $26\times {10}^{-6}/°\mathrm{C}$.

Define specific heat capacity.

What are the types of heat transfer? Write about them.

Give few examples of effects of heat seen in our daily life.