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Byju's Answer
Standard X
Chemistry
Covalent Bond
The reactions...
Question
The reactions in which heat energy is released called:
A
endothermic Reaction
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B
exothermic Reaction
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C
both
(
A
)
and
(
B
)
above
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D
none of the above
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Solution
The correct option is
B
exothermic Reaction
The reaction in which heat energy is released is called Exothermic Reaction.
They have
△
H
i.e; Enthalpy change as negative.
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Similar questions
Q.
The chemical reaction in which heat energy is released is known as _______ reaction.
Q.
The above is a plot of binding energy per nucleon
E
b
,
against the nuclear mass M; A, B,C, D, E, correspond to different nuclei. Consider four reactions :
(i)
A
+
B
→
C
+
ε
(ii)
C
→
A
+
B
+
ε
(iii)
D
+
E
→
F
+
ε
(iv)
F
→
D
+
E
+
ε
,
where
ε
is the energy released. In which reactions
ε
positive?
Q.
The above is a plot of binding energy per nucleon
E
b
, against the nuclear mass M; A, B, C, D, E, F correspond to different nuclei. Consider four reactions;
[AIEEE-2009]
(i) A + B → C + E (ii) C → A + B + E
(iii) D + E → F + E (iv) F → D + E + E
Where
ε
is the energy released? In which reactions is
ε
positive?
Q.
Heat energy is released in an endothermic reaction.
Q.
The above is a plot of binding energy per nucleon
E
b
, against the nuclear mass M; A, B, C, D, E, F correspond to different nuclei. Consider four reactions;
[AIEEE-2009]
(i) A + B → C + E (ii) C → A + B + E
(iii) D + E → F + E (iv) F → D + E + E
Where
ε
is the energy released? In which reactions is
ε
positive?
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