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sergiy2304 [10]
3 years ago
6

Can someone explain and slove question 4

Physics
1 answer:
Sonbull [250]3 years ago
6 0
A. NaOH
B. PbNO3
C. FeSO4
D. P2O3
E. CSe2
F. HC2H3O2
G. HCIO
H. H2SO4
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A fixed mass of an ideal gas is heated from 50°C to 80°C (a) at constant volume and (b) at constant pressure. For which case do
soldi70 [24.7K]

Answer:

Specific heat at constant pressure is =  1.005 kJ/kg.K

Specific heat at constant volume is =  0.718 kJ/kg.K

Explanation:

given data

temperature T1 =  50°C

temperature T2 = 80°C

solution

we know energy require to heat the air is express as

for constant pressure and volume

Q  = m ×  c × ΔT     ........................1

here m is mass of the gas and c is specific heat of the gas and Δ T is change in temperature of the gas

here both Mass and temperature difference is equal and energy required is dependent on specific heat of air.

and here at constant pressure Specific heat  is greater than the specific heat at constant volume,

so the amount of heat required to raise the temperature of one unit mass by one degree at constant pressure is

Specific heat at constant pressure is =  1.005 kJ/kg.K

and

Specific heat at constant volume is =  0.718 kJ/kg.K

3 0
3 years ago
Write the device modeling equation for the first and second law of thermodynamics
anyanavicka [17]
1st <span>the total </span>energy<span> of an </span>isolated system<span> is constant; energy can be transformed from one form to another, but can be neither created nor destroyed. ▲U=Q-W
</span><span> 
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DS (Greater than or equal to) 0
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3 years ago
Help pls, see picture. Will mark Brainliest
Pani-rosa [81]

Answer:

a ) option 2 is correct

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Explanation:

mark me as brainliest ❤️

5 0
2 years ago
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If I turn on a light in a spaceship traveling 1C BACKWARDS, what happens to the photons? Speed -0-, or 1C in opposite direction?
Advocard [28]

If the spaceship's Physicist happens to be hanging out of one side
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When those photons pass somebody who happens to be in their
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It doesn't matter whether the observer who measures them is
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And it doesn't matter what source the photons come from, or
whether the source is moving, or at what speed.

And it doesn't matter what the photons' wavelength/frequency is ...
anything from radio to gamma rays.

The photons pass everybody at 'c' ... the speed of light.

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5 0
3 years ago
If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?
dybincka [34]
M = 4kg
F =8N
a..?

F =m.a
8 = 4.a
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