Tempera example sentences

These gases may be mixed at room temperature and left for many years without observing any perceptible change.Polythene is obtained by the combination of large number of ethene molecules at high temperature, high pressure and in the presence of a catalyst.Joule between 1840–50 and he was able to show that a given amount of work done on the system, no matter how it was done (irrespective of path) produced the same change of state, as measured by the change in the temperature of the system.Increase in the global temperature increases the incidence of infectious diseases like dengue, malaria, yellow fever, sleeping sickness etc.The climatic conditions like temperature, humidity and rainfall vary from one region to another.Quartz, cristobalite and tridymite are some of the crystalline forms of silica, and they are interconvertable at suitable temperature.You have learnt that most of the east and north east margins of the continents are covered by temperate evergreen and deciduous trees.The temperature in the interior of the earth rises steadily as we go deeper.Maize requires moderate temperature, rainfall and lots of sunshine.It grows well on alluvial soil and requires high temperature, heavy rainfall and humid climate.Where the geothermal gradient is high, high temperatures are found at shallow depths.The temperature also rose as they sank deeper and deeper.Though the light reactions are also temperature sensitive they are affected to a much lesser extent.Do you know that we humans also live in a greenhouse? Of course, we are not surrounded by glass but a blanket of air called the atmosphere, which has kept the temperature on earth constant for centuries.Changes of phase such as melting, vaporization and sublimation usually occur at constant temperature and can be characterized by enthalpy changes which are always positive.