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borishaifa [10]
3 years ago
10

Any reaction that absorbs 150 kcal of energy can be classified as ________.

Chemistry
1 answer:
Ivanshal [37]3 years ago
7 0

Answer:

a. endothermic

Explanation:

  • Endothermic reaction: is a chemical reaction that absorbs heat or energy through the reaction.

  • While, exothermic reaction: is a chemical reaction that releases energy through light or heat. It is the opposite of an endothermic reaction.

<em>So, Any reaction that absorbs 150 kcal of energy can be classified as </em><em>a. endothermic.</em>

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What are two processes that result in rocks being broken down into smaller pieces !?
Snowcat [4.5K]
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2 years ago
Consider the reaction NOBr(g) =&gt; NO(g) + 1/2 Br2(g). A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M-1
timama [110]

Answer:

Thus, the order of the reaction is 2.

The rate constant of the graph which is :- 2.00 M⁻¹s⁻¹

Explanation:

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The concentration vs time graph of zero order reactions is linear with negative slope.

The concentration vs time graph for a first order reactions is a exponential curve.  For first order kinetics the graph between the natural logarithm of the concentration vs time comes out to be a straight graph with negative slope.

The concentration vs time graph for a second order reaction is a hyberbolic curve. Also, for second order kinetics the graph between the reciprocal of the concentration vs time comes out to be a straight graph with positive slope.

Considering the question,

A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M⁻¹s⁻¹.

<u>Thus, the order of the reaction is 2.</u>

<u>Also, slope is the rate constant of the graph which is :- 2.00 M⁻¹s⁻¹</u>

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