The density of a material A is 1500 kg/m^3 a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Heat capacity $(C)$ is defined as the product of mass $(m)$ and specific heat capacity $(c)$,i.e.,$C = mc$.Mass is given by the product of density

Vedclass · Accepted Answer

$2 : 1$

Vedclass · Answer

(D) Heat capacity $(C)$ is defined as the product of mass $(m)$ and specific heat capacity $(c)$,i.e.,$C = mc$.Mass is given by the product of density $(ho)$ and volume $(V)$,i.e.,$m = ho V$.For material $A$: Density $ho_A = 1500 \ kg/m^3$,Volume $V_A = 8 \ units$. Mass $m_A = 1500 	imes 8 = 12000 \ units$.For material $B$: Density $ho_B = 2000 \ kg/m^3$,Volume $V_B = 12 \ units$. Mass $m_B = 2000 	imes 12 = 24000 \ units$.Given that the heat capacity of $8$ volumes of $A$ is equal to the heat capacity of $12$ volumes of $B$:$m_A 	imes c_A = m_B 	imes c_B$$12000 	imes c_A = 24000 	imes c_B$$c_A = 2 c_B$Therefore,the ratio of specific heats $c_A : c_B = 2 : 1$.

The density of a material $A$ is $1500 \ kg/m^3$ and that of another material $B$ is $2000 \ kg/m^3$. It is found that the heat capacity of $8$ volumes of $A$ is equal to the heat capacity of $12$ volumes of $B$. The ratio of specific heats of $A$ and $B$ will be

Similar Questions

$4200\, J$ of work is required for:

The molar mass of a substance is $50 \, g/mol$. When $300 \, J$ of heat is supplied to a $25 \, g$ sample of this substance,its temperature increases from $30^{\circ}C$ to $50^{\circ}C$. The values of heat capacity and specific heat capacity are,respectively:

What is the value of the specific heat of all substances at absolute zero temperature?

$A$ metal cube absorbs $2100.0 \ J$ of heat when its temperature is raised by $2^{\circ} C$. If the specific heat of the metal is $900 \ J \ kg^{-1} K^{-1}$, then the mass of the cube is (in $kg$)

When $300 \, J$ of heat is given to a body of mass $25 \, g$,its temperature rises from $25^{\circ}C$ to $45^{\circ}C$. What are the heat capacity and specific heat capacity,respectively?

Vedclass Test Series

Exam Paper Generator

Online Exam Module