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3 years ago

Why is a thermocouple a good device for indicating the temperature in a car engine?

2 answers:

5 0

A thermocouple is a sensor used to measure temperature. Thermocouples are made with two wires of different metals, joined together at one end to form a junction. ... Naturally, a thermocouple outputs a millivolt signal, therefore, as the resistance changes, the change in voltage can be measured.

-nat geo

Law Incorporation [45]3 years ago

3 0

Answer:

A thermocouple is useful for measuring temperatures in areas that are difficult to reach .

Explanation:

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If the average atomic mass of Rhodium is 102.91 amu, which isotope do you think has the greater percent abundance?

Illusion [34]

round up given mass to a whole number

$\\ \sf\longmapsto 102.91$

$\\ \sf\longmapsto 102.9$

$\\ \sf\longmapsto 103$

Hence our answer is Rhodium-103

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3 years ago

Two vessels are labeled A and B. Bessel A contains NH3 gas at 68 C, and vessel B contains Ne gas at the same temperature. If the

garik1379 [7]

Answer:

Root mean square speed = 649.205m/s

Explanation:

The root mean square speed shows the connection between the average kinetic energy of molecules and the gas temperature. it is derived from the ideal gas equation and the average kinetic energy. Vrms = square root ( 3RT/M).

The detailed explanation is as shown in the attachment

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2 years ago

Hope is testing a substance using blue litmus paper. The paper turns red. The substance is _____.

Aleksandr [31]

Answer:

the substance is an acid

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2 years ago

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Fireworks exploding in the sky and giving off light are an example of a(n) _____.

Serggg [28]

Exothermic change. Because the firework when it exploded, released energy in the form of light. In exothermic changes energy is released, and in endothermic changes energy is absorbed.

- This wouldn't be a physical change, but instead a chemical change. A clue that it is a chemical change is that energy was given off.

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3 years ago

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When pH changes from 6 to 3, how many times does acidity increase?

photoshop1234 [79]

Since a pH of 3 is three numbers higher than a pH of 6, we can find the change in acidity by taking 10 to the third power. The solution with a pH of 3 is 1000 times more acidic than the solution with a pH of 6.

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3 years ago