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liubo4ka [24]
3 years ago
6

What happens when More gases dissolve into magma

Chemistry
2 answers:
konstantin123 [22]3 years ago
7 0
<span>Bodies of magma rise in the crust until they reach a point of neutral buoyancy. The expansion of gases brings the magma closer to the surface and drives eruptions. When more gases are dissolve into the magma, there would more chances of explosion. Hope this answers the question.</span>
Airida [17]3 years ago
6 0

Answer:

The dissolved gases play a significant role in pushing the magma upwards, towards the surface. When these dissolved gases are in large quantities within the magma, then the intruding magma is able to generate more force, pushing the magma towards the surface. As a result of which, violent volcanic eruptions take place that releases various harmful gases. If the silica content is high and the magma comes in contact with water then it leads to a heavy explosion.

These dissolved gases are mostly Carbon dioxide (CO₂), sulfur dioxide (SO₂), hydrogen sulfide (H₂S) and a certain amount of water vapor (H₂O).

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Ethanol (c2h5oh) melts at -114°c. the enthalpy of fusion is 5.02 kj/mol. the specific heats of solid and liquid ethanol are 0.9
Nimfa-mama [501]

Answer: 4.18925 kJ heat is needed to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50°C.

Explanation:

Temperature of Solid C_2H_5OH=-135^oC=138 K(0^oC=273K)

Melting temperature of Solid C_2H_5OH=114^oC=159 K

Temperature of liquid C_2H_5OH=-50^oC=223K

Specific heats of solid  ethanol = 0.97 J/gK

Specific heats of liquid ethanol = 2.3 J/gK

Heat required to melt the the 25 g solid C_2H_5OH at 159 K

\Delta T_1 = 159 K - 138 K = 21 K

Q_1=mc\Delta T= 25\times 0.97J/gK\times 21 K=509.25 J

Heat required to melt and raise the temperature of C_2H_5OH upto 223 K

\Delta T_2 = 223 K - 159 K  = 64 K

Q_2=mc\Delta T= 25\times 2.3J/gK\times 64 K=3680 J

Total heat to convert solid ethanol to liquid ethanol at given temperature :

Q_1+Q_2=509.25 J+3680 J=4189.25 J=4.18925 kJ (1kJ=1000J)

Hence, 4.18925 kJ of heat will be required to convert 25.0 g of solid ethanol at -135 °C to liquid ethanol at -50°C.

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Answer:

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Explanation:

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