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3 years ago

What is the motion of convention currents

2 answers:

8 0

Answer: A convection current is a process that involves the movement of energy from one place to another. It is also called to as convection heat transfer.

Sorry I don’t have the exact answer hope it helps

Explanation: A convection current is a process that involves the movement of energy from one place to another. It is also called to as convection heat transfer.

Blababa [14]3 years ago

5 0

Answer:Convection currents drive the movement of Earth's rigid tectonic plates in the planet's fluid molten mantle. In places where convection currents rise up towards the crust's surface, tectonic plates move away from each other in a process known as seafloor spreading (Fig. 7.21).

Explanation:

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Consider equimolar samples of different ideal gases at the same volume and temperature. Gas A has a higher molar mass than gas B

dezoksy [38]

Answer:

I don't understand the question

Explanation:

1. c

2. c

8 0

3 years ago

Read 2 more answers

Amino acids cannot be broken down to provide energy.

Ostrovityanka [42]

False, Dietary proteins are first broken down to individual amino acids by various enzymes and hydrochloric acid present in the gastro-intestinal tract. These amino acids are further broken down to α-keto acids which can be recycled in the body for generation of energy, and production of glucose or fat or other amino acids.

5 0

4 years ago

What type of friction is talking

kotykmax [81]

Answer:

does friction talks ? friction is a oppossing force tho

4 0

3 years ago

Benzene and alkyl-substituted benzenes can be hydroxylated by reaction with H2O2 in the presence of an acidic catalyst. What is

Yuri [45]

Answer:

The electrophile is the hydroxide free radical

Explanation:

The hydroxylation of benzene and benzene derivatives using hydrogen peroxide proceeds in the presence of an acidic catalyst. The electrophile in this reaction is the hydroxyl free radical generated in an initial step of the reaction.

This is actually a free radical reaction. The hydroxyl radical previously generated reacts with the benzene ring to yield a radical that undergoes further rearrangement to yield the product phenol. The intermediate, shown as part of this reaction mechanism (refer to image attached) is a specie in which the odd electron is delocalized over the entire benzene ring. Loss of a proton completes the reaction mechanism yielding the corresponding phenol.

5 0

4 years ago

A quantity of 0.0250 mol of a gas initially at 0.050 L and 19.0°C undergoes a constant-temperature expansion against a constant

KiRa [710]

Answer:

$V_2=2.995L\\\\W=248.5J$

Explanation:

Hello,

In this case, for us to compute the final volume we apply the Boyle's law that analyzes the pressure-volume temperature as an inversely proportional relationship:

$P_1V_1=P_2V_2$

So we solve for $V_2$ by firstly computing the initial pressure:

$P_1=\frac{nRT}{V_1}=\frac{0.025mol*0.082\frac{atm*L}{mol*K}*(19+273.15)K}{0.050L} =11.98atm$

$V_2=\frac{P_1V_1}{P_2}=\frac{11.98atm*0.050L}{0.200atm}\\ \\V_2=2.995L$

Finally, we can compute the work by using the following formula:

$W=nRTln(\frac{V_2}{V_1} )=0.025mol*8.314\frac{J}{mol*K}*(19.0+273.15)K*ln(\frac{2.995L}{0.050L}) \\\\W=248.5J$

Best regards.

4 0

4 years ago