All categories

3 years ago

The energy of the universe is constant. That what mentioned by the first law of thermodynamics,

Chemistry

1 answer:

Goryan [66]3 years ago

5 0

Answer:

No, ΔE does not always equal zero because it refers to the systems internal energy, which is affected by heat and work

Explanation:

According to the first law of thermodynamics, energy is neither created nor destroyed. This implies that the total energy of a system is always a constant.

So, according to the first law of thermodynamics we have that ΔE = q + w. This means that the value of ΔE depends on q (heat) and w(work). Hence ΔE is not always zero since it depends on the respective values of q and w.

You might be interested in

Which element when combined with fluorine would form a ionic compound

natka813 [3]

Magnesium ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎ ‏‏‎ ‎

8 0

3 years ago

Processes on and near Earth’s surface produce _____ rocks

Alex17521 [72]

I think it's sedimentary

8 0

3 years ago

Read 2 more answers

When an electron loses electrons it becomes more 1 negative. 2 none of the above. 3 neutral 4 positive.

12345 [234]

The answer would be more positive

8 0

3 years ago

Read 2 more answers

Consider this equation: 2.524 g (5.1 × 106 g) ÷ (6.85 × 103 g) = ? How many significant figures should the result have?

weqwewe [10]

Answer:

Explanation:

2.524g(5.1)(106)g

(6.85)(103)g

1364.4744g2

705.55g

1364.4744g

705.55

1364.4744g

705.55

=1.933916g

6 0

4 years ago

In one or two sentences, explain why the combined weight of several liquids mixed in an open flask can be less than but never mo

Rasek [7]

Answer:

Liquids in a form of mixture has less weight as compared to sum of all liquid's weight due to release of gases.

The combined weights of several liquids mixed in an open flask be less than the sum of all the weights of the liquids because when the reaction occurs new products are formed and also some gases which releases in the atmosphere.

These gases also contribute in the weight of the product so when it is released the weight of the mixture of liquids are less than the sum of the weights of all liquids so we can conclude that liquids in a form of mixture has less weight as compared to sum of all liquid's weight.

Explanation:

4 0

3 years ago

Read 2 more answers