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3 years ago

What percentage of the mass of the solar nebula consisted of elements other than hydrogen and helium?

Physics

2 answers:

Korvikt [17]3 years ago

6 0

Answer:

Explanation:

75% of the mass contains hydrogen 25% helium and all other elements comprising only of 2%

neonofarm [45]3 years ago

5 0

Answer:

C. 2 percent.

Explanation:

75% of the mass in the form of hydrogen

25% as helium

All other elements comprising only 2% of the total

Assume mass of the solar nebula = 100

Remaining % = 2%

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By definition the exchange of heat is given by

$Q =mc\Delta T$

where,

m = mass

c = specific heat

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Therefore the total heat exchange is given as

$\Delta Q = Q_w+Q_v$

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Our values are given as,

Total mass is $M_T$ = 200lb ,however the mass of solid vegetable and water is given as,

$m_v= 0.4*200lb = 80lb$

$m_w=0.6*200lb=120lb$

$T_i = 183\°F\\T_f = 22\°F\\c_w = 1Btu/lbF\\c_v = 0.24Btu/lbF$

Replacing at our equation we have,

$\Delta Q = m_wc_w(T_i-T_f)+m_vc_v(T_i-T_f)$

$\Delta Q = (120)(1)(183-22)+(80)(0.24)(183-22)$

$\Delta Q = 22411.2Btu$

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