Mercury level in a thermometer changed from 10^@ C to 20^@C. If 0.5 Pa pressure is increased in average per each degree rise in temperature, then express the change in average thrust acting on the walls of container between these temperatures in terms of thrust at 10^@C and the area of cross sec tion ofcapillary tube is uniform (Consider average pressure at 10^@ C as 5 Pa ).

Mercury level in a thermometer changed from 10^@ C to 20^@C. If 0.5 Pa

1.	Mercury level in a thermometer changed from 10^@ C to 20^@C. If 0.5 Pa pressure is increased in average per each degree rise in temperature, then express the change in average thrust acting on the walls of container between these temperatures in terms of thrust at 10^@C and the area of cross sec tion ofcapillary tube is uniform (Consider average pressure at 10^@ C as 5 Pa ).
Answer» Solution :Area (A) = cosntant INCREASE in `10^@C` of temperature , the PRESSURE increased is `10 xx 0.5 = 5 Pa` `P_(10^@)c = F_(10 ^(@)C)/A,P_(20^(@)c)=(F_(2^(@)C))/Aj` `F_(10)/P_(20)=(F_(20))/(P_(20))P_(10)=5 Pa, P_(20)= 10 pa` `F_(10)/P_(20)=(F_(20))/(P_(20))=5/10= 1/2` `2F_(10)=F_(20),F_(20)-F_(10)= 2F_(10)-F_(10)=F_(10)` The change in thrust at `10^(@)`C