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weqwewe [10]
3 years ago
12

Consider the energy diagram below.

Chemistry
2 answers:
Whitepunk [10]3 years ago
8 0

Answer:

Explanation:

Thank you for providing the graph which was missing in the question!

D is the correct answer because a catalyst will speed up a chemical reaction. In an exothermic reaction as shown, the catalyst also enhances the reaction so that more energy is given out.

Marysya12 [62]3 years ago
4 0

Answer:

The answer is D

Explanation:

I just took the exam on edg and got it correct... i hope this helps :)

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The sun emits electromagnetic waves at many frequencies, but mostly in the infrared, visible, and ultraviolet
meriva
The correct answer is radiant, radiant that get transferred into chemical energy
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4 years ago
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Water (10 kg/s) at 1 bar pressure and 50 C is pumped isothermally to 10 bar. What is the pump work? (Use the steam tables.) -7.3
Andreyy89

Answer:

The pump work is 3451 kJ/s

Explanation:

Pump work (W) is calculated as

W = (h_f - h_i) \times \dot{m}

where

h_f is the enthalpy of water at its final state

h_i is the enthalpy of water at its initial state

\dot{m} = 10 kg/s is water mass flow

For liquids, properties are evaluated as saturated liquid. From the figure attached, it can be seen that

h_f = 762.81 kJ/kg

h_i = 417.46 kJ/kg

Replacing

W = (762.81 kJ/kg - 417.46 kJ/kg) \times 10 kg/s

W = 3451 kJ/s

8 0
3 years ago
What is the temperature change of an 36-gram sample of water that had absorbed 695 Joules of heat? C = 4.18 J/g K
maks197457 [2]

The temperature change of a 36-gram sample of water is <u>4.61 K</u>

Temperature is the degree of the average kinetic energy of the debris in an item. while the temperature will increase, the movement of this debris additionally will increase. Temperature is measured with a thermometer or a calorimeter.

heat = msΔt

     695 Joule = 36 ×  4.186 × Δt

Δt   =  695/ 36 ×  4.186

      = <u>4.61 K</u>

Temperature is just a dimension that indicates the common kinetic energy of 1 atom or molecule. as a result, when we are saying something is warm or bloodless, we're generally using any other reference point to define the hotness and coldness of a frame.

Learn more about temperature here:-brainly.com/question/2339046

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What is a primary food crop
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Grains, such as corn, wheat, and rice, are the world's most popular food crops.

3 0
3 years ago
Guys, please, please help!!
shutvik [7]
Ookay 

1) T 
2) T
3) F

Hope i helped :)

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3 years ago
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