Question

The temperature inside a refrigerator is t₂°C and the room temperature is t₁°C. The amount of heat delivered to the room fbr each joule of electrical energy consumed ideally will be

(a) t₁/t₁ - t₂

(b)  t₁ +273/t₁ - t₂

(c)   t₂ + 273/t₁ - t₂

(d)  t₁ + t₂/t₁ + 273

Answer 1

Correct option (b)  t₁ +273/t₁ - t₂

Explanation:

Temperature inside refrigerator = t₂°C Room temperature = t₁°C

For refrigerator,

The amount of heat delivered to the room for each joule of electrical energy (W= 1 J)