A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increase by 60° C . How much heat is added approximately to helium during expansion

Question

A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increase by 60° C . How much heat is added approximately to helium during expansion (A) 1000 cal (B) 7000 cal (C) 1400 cal (D) 1500 cal

Tardigrade Admin · Accepted Answer

Q = nc p Δ T ( R =2 cal / k mol -1) Q =8 × (5 R /2) × 60 =40 × 30 × 2 =1400 cal

Q. A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increase by $6 0^{\circ} C .$ How much heat is added approximately to helium during expansion

1000 cal

7000 cal

1400 cal

1500 cal

$Q = n c_{p} Δ T (R = 2 c a l / km o l^{- 1})$
$Q = 8 \times \frac{5 R}{2} \times 60$
$= 40 \times 30 \times 2$
$= 1400 c a l$

Q. A bubble of 8 mole of helium is submerged at a certain depth in water. The temperature of water increase by 60∘C. How much heat is added approximately to helium during expansion