A boiler is made of a copper plate `2.4mm` thick with an inside coating of a `0.2mm` thick layer of tin The surface area exposed to gases at `700^(@)C` is `400cm^(2)` The maximum amount of steam that could be generated per hour at atmospheric pressure is
`({:(K_(cu)=0.9cal//cm-s-^(0)& k_("tin")=0.15cal//cm-s-^(0)C andL_(steam)=540cal//g:})` .

1 gram of ice at -10^@ C is converted to steam at 100^@ C the amount of heat required is (S_(ice) = 0.5 cal//g -^(@) C) (L_(v) = 536 cal//g & L_(f) = 80 cal//g,) .

50 g of ice at 0^(@)C is converted to steam at 100^(@)C . Calculate the amount of heat given in this process. (Latent heat of vapourisation= 540 cal. per gm)

A 5 cm thick ice block is there on the surface of water in a lake. The tmeperature of air - 10^(@)C , how muct time it will take to double the thickness of the block? (L = 80 cal//g, K_(ice) = 0.004 cal//s-K, d_(ice) = 0.92 g cm^(-3))

10 g ice at 0^@C is converted into steam at 100^@C . Find total heat required . (L_f = 80 cal//g, S_w = 1cal//g-^@C, l_v = 540 cal//g)

5 g of steam at 100^(@)C is mixed with 10 g of ice at 0^(@)C . Choose correct alternative /s) :- (Given s_("water") = 1"cal"//g ^(@)C, L_(F) = 80 cal//g , L_(V) = 540cal//g )

5 g of steam at 100^(@)C is mixed with 10 g of ice at 0^(@)C . Choose correct alternative /s) :- (Given s_("water") = 1"cal"//g ^(@)C, L_(F) = 80 cal//g , L_(V) = 540cal//g )

5 g of steam at 100^(@)C is mixed with 10 g of ice at 0^(@)C . Choose correct alternative /s) :- (Given s_("water") = 1"cal"//g ^(@)C, L_(F) = 80 cal//g , L_(V) = 540cal//g )

0 g ice at 0^@C is converted into steam at 100^@C . Find total heat required . (L_f = 80 cal//g, S_w = 1cal//g-^@C, l_v = 540 cal//g)

Water is being boiled in flat bottom kettle placed on a stove. The area of the bottom is 3000cm^2 and the thickness is 2 mm. If the amount of steam produced is 1g//min , calculate the difference of temperature between the inner and outer surface of the bottom. K for the material of kettle is 0.5 cal^@C//s//cm , and the latent heat of steam is 540 cal//g .