Dry hydrogen is trapped by pellet of mercury in a uniform capillary tube closed at one end. If the length of the column of hydrogen at 27°C is 1.0m, at what temperature will the length be 1.20m?
Two solids P and Q of equal mass are heated to the same temperature and dropped simultaneously into two identical containers X and Y containing equal volumes of water at room temperature. The temperature of X will rise higher than that of Y only if the
A.
volume of P is greater than that of Q
B.
specific heat capacity of P is higher than that of Q
C.
density of P is greater than that of Q
D.
density of P is lower than that of Q
E.
specitic heat capacity of P is lower than that of Q.
lf the temperature of a small quantity of water in a closed container is gradually increased from 0o to 40oC then the density of the water within this range
