Heat is supplied to a gas at constant pressure , the ratio $\; \bigtriangleup Q : \bigtriangleup u : \bigtriangleup W\;$ depends on

$(a)\;degrees\;of\;freedom\;of\;gas\qquad(b)\;temperature\;change\;value\qquad(c)\;no .\; of \;moles\;of\;gas\qquad(d)\; All\;of\;these$

Answer : degrees of freedom of gas
Explanation :
$\bigtriangleup Q = n C_{p} \bigtriangleup T$
$\bigtriangleup u = n C_{v} \bigtriangleup T$
$\bigtriangleup W = n C_{p} \bigtriangleup T$
$\bigtriangleup Q : \bigtriangleup u : \bigtriangleup W$
$= C_{p} : C_{v} : C_{p} - C_{v}$
$=\large\frac{(f+1)}{2} R : \large\frac{fR}{2} : R$
$(f+1) : f : 2$