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3 years ago

Which statement describes spontaneous processes?

Chemistry

2 answers:

Lemur [1.5K]3 years ago

7 0

the answer is 100 % A)

julia-pushkina [17]3 years ago

7 0

Answer: Option (a) is the correct answer.

Explanation:

As spontaneous process is a process that occurs on its own. So, it can be endothermic or exothermic in nature.

For example, churning of milk is a spontaneous process and the milk does not require any external force to convert itself into curd.

Free energy change for a spontaneous process is negative in nature. This also means that value of $\Delta G$ is negative.

Thus, we can conclude that the statement proceed without continuous external influence and have an overall negative free energy change proceed without continuous external influence and have an overall negative free energy change.

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7. Which of the following represents the largest mass?

Tamiku [17]

Answer:

10kg = 10 x 1000 = 10,000g

Explanation:

To know the quantity with the largest mass, we have to express all the units in grams:

for: 2 x 10mg = 2 x 10 x 10⁻³ = 0.02g

0.001kg = 0.001 x 1000 = 1g

1 x 10⁵ng = 1 x 10⁵ x 10⁻⁹ = 0.0001g

2 x 10²cg = 2 x 10² x 10⁻² = 2g

10kg = 10 x 1000 = 10,000g

Note:

10⁻ ¹ deci(d)

10⁻² centi(c)

10⁻³ milli(m)

10⁻⁹ nano(n)

10³ kilo(k)

5 0

4 years ago

What is Equilibrium? I’m a little confused on the topic. You’ll get a lot of points if you answer I think.

AleksAgata [21]

Answer:

to put it simply, equilibrium is when two opposing forces balance each other out. one example is boats: you know how the bottom half is curved, and then meets at an edge? they design it like that because of water displacement. by gravity, the water wants to go back to the area taken by the boats mass (the parts where it has sunken into the water), thus preventing the boat from sinking. once the boat is removed, the water returns to the space. most liquids take form of their container.

8 0

3 years ago

What is the missing number in the nuclear reaction shown below 175 78 pt?

Dmitry [639]

Above question is incomplete. Complete question is
What is the missing number in the nuclear reaction 175 78 pt -- 4 2 He plus 76 Os?
....................................................................................................................
Solution:

Reaction involved in present nuclear event is
175 78 Pt → 4 2 He + 76 Os

In above nuclear reaction, atomic mass number of Os is missing. The atomic mass number of Os = 175 - 4 = 171

Thus, complete nuclear can be written as
175 78 Pt → 4 2 He + 171 76 Os

3 0

3 years ago

Read 2 more answers

A sound wave has a frequency of 3250 Hz and a

antiseptic1488 [7]

Answer:

c = 325.0 m/s.

Explanation:

Hello there!

In this case, since the frequency, velocity and wavelength are related via:

$c=\lambda *f$