3 months ago

At -70 ∘c and 5.2 atm, carbon dioxide is in which phase?

2 answers:

7 0

A phase diagram illustrates the relationship between temperature and pressure, allowing determination of a compound's phase under specific conditions. The three equilibrium curves: Solid-Gas, Liquid-Gas, and Solid-Liquid, separate the different states of matter. Additionally, all three phases can coexist at a specific point known as the triple point.

According to the phase diagram for CO2 (easily found online), at -70 C and 5.5 atm, CO2 is in a solid state.

castortr0y [3K]3 months ago

6 0

The conversion of -70 degrees Celsius results in 9/5 x C + 32 = 158 degrees Fahrenheit. CO2 transitions to solid state at -108.5 degrees Fahrenheit, indicating that at -70 degrees Celsius, it will be in the state commonly known as 'dry ice'.

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A 10.00 mL sample of 8.50 M HNO3 solution is diluted to a new volume of 65.0 mL. What is the concentration of the dilute solutio

lions [2927]

Answer: 1.31M

Explanation:

V1 = 10mL

C1 = 8.5M

V2 = 65mL

C2 =?

Using C1V1 = C2V2

10 x 8.5 = C2 x 65

C2 = (10 x 8.5 ) /65

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3 months ago

At 400K both compounds are gases. At this temperature, which compound, CH4(g) or CCl4(g) , behaves more like an ideal gas

Alekssandra [3086]

Answer:

CH4

Explanation:

The ideal behavior of gases generally depends on the strength of intermolecular forces between gas molecules and whether polar bonds are present.

In the case of CCl4, polar bonds exist along with the more electronegative chlorine atom, leading to stronger intermolecular forces at 400K, as opposed to CH4 which contains only non-polar bonds.

Thus, at 400K, CH4 behaves more like an ideal gas compared to CCl4.

6 0

3 months ago