Which statement explains how mantle plumes produce hotspot volcanoes? a
Mantle plumes push through weak zones of the crust, emerging at Earth’s surface in a plume-shape in areas that are not necessarily the boundaries of tectonic plates.
b
Mantle plumes consist of a molten mix of rock that is much hotter and less dense than surrounding rock and so rises through the mantle.
c
Mantle plumes are formed when tectonic plates move over hotspots in the mantle.
d
Mantle plumes originate near the mantle core boundary, where there is a sharp thermal gradient.

idk i’m struggling too

narendra modi is currently the pm of india

explanation:

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :