The enthalpy change that accompanies a reaction is called the enthalpy of reaction (DHrxn). It is sometimes convenient to provide the value for DHrxn along with the balanced chemical equation for a reaction (also known as a thermochemical equation): 2H2(g) + O2(g) -> 2H2O(g) DH = -483.6 kJ.
It is the most recent in 9.7 inch iPad version. The display is also Retina with a huge resolution of 2048 x 536 pixels at 264 ppi. This new iPad retained the size 9.7 inches display size(250 mm) and also the LED back-lighting technology, plus fingerprint and scratch resistant coating. Random Access Memory is also the same: 1024 MB DDR II. The 4th generation iPad has the fastest processor, called Apple A6X. CPU features a 1.4 GHz dual core.
As promised, weâll be answering your questions about the iPad here on the Consumer Reports Electronics blog. iPads are available in 16GB, 32GB, and 64GB sizes. Each costs $100 more than its next-smallest counterpart, so the 64GB model is the best deal if youâre looking for lots of storage space. On the other hand, if you donât mind transferring the movies and TV shows you buy from iTunes on and off your iPad to save space, you might be able to get away with the 16GB model.