Question

*(6) Two substances A and B have
specific heats c and 2 c respectively. If A
and B are given Q and 4Q amounts of
heat respectively, the change in their
temperatures is the same. If the mass of
A is m, what is the mass of B ?
Solution : Data : c (A)=C, C (B)=2c,
Q (A)=Q, Q (B) = 4Q, AT same,
m (A)=m, m (B) = ?
Q=MCAT SAT- Q
mc
AS AT is the same for substances A and B,
Q(A)
Q(B)
we have, -
m(A) C(A) m(B) (B)
Q 42
mc m(B)2C
1 2
m m(B)
m(B)= 2m.
(please explain how answer came)​

Answer 1

Two substances A and B have

specific heats c and 2 c respectively. If A

and B are given Q and 4Q amounts of

heat respectively, the change in their

temperatures is the same. If the mass of

A is m, what is the mass of B ?

Solution : Data : c (A)=C, C (B)=2c,

Q (A)=Q, Q (B) = 4Q, AT same,

m (A)=m, m (B) = ?

Q=MCAT SAT- Q

mc

AS AT is the same for substances A and B,

Q(A)

Q(B)

we have, -

m(A) C(A) m(B) (B)

Q 42

mc m(B)2C

1 2

m m(B)

m(B)= 2m...

Answer 2

Explanation:

(B)

we have, -

m(A) C(A) m(B) (B)

Q 42

mc m(B)2C

1 2

m m(B)(B)

we have, -

m(A) C(A) m(B) (B)

Q 42

mc m(B)2C

1 2

m m(B)

m(B)= 2m.

(please explain how answer came)

m(B)= 2m.

(please explain how answer came)

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