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2 years ago

Help me please !! is it A,B,C, or D ???

Chemistry

1 answer:

Nata [24]2 years ago

5 0

Ok, after doing an immense amount of research I came up with the most logical answer.

A. Is indicated by a negative enthrall sign.

Reasoning: an endothermic reaction is ice melting and the energy being more than its surroundings. Not specified to ice but as an example, ice is endothermic. That puts d and b out of the running leaving you left with a and c.

When I searched up enthalpy, it said “When a substance changes at constant pressure, enthalpy tells how much heat and work was added or removed from the substance.” Which is similar to c, right? Yeah, meaning both a and c are similar in that aspect.

The reason I decided to go with a is because heat is NOT released into the surrounding, exothermic reactions release energy and heat into the surrounding.

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3 years ago

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2 years ago

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3 years ago

A gamma ray photon has an energy of 4.75 x 10-14 joules. What is the frequency of this radiation?

Rama09 [41]

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<u>Given the following data:</u>

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Mathematically, the Planck-Einstein relation is given by the formula:

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<u>Where:</u>

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2 years ago

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nikdorinn [45]

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