An ideal refrigerator runs between `-23^(@)C` and `27^(@)C`. Find the heat regected to atomosphere for every joule of work input.

Refrigerator A works between -10^@C and 27^@C , while refrigerator B works between -27^@C and 17^@C , both removing heat equal to 2000J from the freezer. Which of the two is the better refrigerator?

Refrigerator A works between -10^@C and 27^@C , while refrigerator B works between -27^@C and 17^@C , both removing heat equal to 2000J from the freezer. Which of the two is the better refrigerator?

Refrigerator A works between (-10)^@C and 27^@C while refrigerator B works between -20^@C and 17^@C , both removing heat equal to 2000 J from the freezer. Which of the two is the better refrigerator?

A refrigerator works between 3^(@)C and 40^(@)C . To keep the temperature of the refrigerator constant, 600 calories of heat is to be removed every second. The power required is

A refrigerator works between 4^(@)C and 30^(@)C . It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigeratord space constant. The power required is (take 1 cal=4.2 Joule)

Refrigerator A works between- 10^(@)C and 27^(@)C while refrigerator B works between -20^(@)C and 17^(@)C , both removing 2000J from the freezer. Which of the two is better refrigerator?

A refrigerator works between 4^(@)C and 30^(@)C . It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerator space constant.The power required is (Take 1calorie= 4.2 J )

A refrigerator works between 4^(@)C and 30^(@)C . It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerator space constant.The power required is (Take 1calorie= 4.2 J )